Fitoplancton del Refugio de Fauna Silvestre Isla de Aves: el territorio venezolano más septentrional
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Venezuelan Caribbean
marine ecology
phytoplankton
Island of birds
microalgae
Caribe venezolano
ecología marina
fitoplancton
Isla de Aves
microalgas
marine ecology
phytoplankton
Island of birds
microalgae
Caribe venezolano
ecología marina
fitoplancton
Isla de Aves
microalgas
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Volume Title
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Instituto Tecnológico de Santo Domingo (INTEC)
Como parte de una estrategia de conservacion del Refugio de Fauna Silvestre Isla de Aves, el cual representa una zona geoestrategica para la Republica Bolivariana de Venezuela, las instituciones de investigacion del pais realizan campanas anuales para conocer la biodiversidad de la isla. Uno de los componentes biologicos mas importantes es el fitoplancton, ya que, a pesar de que sustenta las redes troficas pelagicas marinas y es parte esencial del ciclo de los nutrientes, no ha sido estudiado en esta zona, por lo que se presenta en este documento, un inventario del fitoplancton marino. Para ello, se realizaron arrastres con una red conica de fitoplancton en julio de 2011 y 2012. En laboratorio, se estimo la abundancia por el metodo de Utermolh, con un microscopio invertido y claves taxonomicas. La comunidad estuvo representada por 191 especies distribuidas en 121 diatomeas, 58 dinoflagelados, 6 cianobacterias, 3 euglenofitas y 3 silicoflagelados. Finalmente, destacamos que la zona marino costera de la isla se caracteriza por una comunidad fitoplanctonica diversa, con abundancias caracteristicas de aguas oligotroficas de ecosistemas coralinos y procesos de mezcla de la columna de agua.
As part of a conservation strategy for the Wildlife Refuge “Isla de Aves”, which represents a geostrategic zone for the Bolivarian Republic of Venezuela, several research institutions conduct studies every year to learn about the island’s biodiversity. One of the most important biological components is phytoplankton, since although it sustains marine pelagic trophic networks and is an essential part of the nutrient cycles; it has not been studied in this area, so an inventory of marine phytoplankton was accomplished. Here, we carried out several trawls with a conical phytoplankton net in July 2011 and July 2012. In the laboratory, abundance was estimated by the Utermolh method, with an inverted microscope and specialized bibliography. The community was represented by 191 species distributed in 121 diatoms, 58 dinoflagellates, 6 cyanobacteria, 3 eugleophytes and 3 silicoflagellates. The coastal marine zone of the island is characterized by a diverse phytoplankton community, with characteristic abundances of oligotrophic waters of coral ecosystems and processes of mixing the water column.
As part of a conservation strategy for the Wildlife Refuge “Isla de Aves”, which represents a geostrategic zone for the Bolivarian Republic of Venezuela, several research institutions conduct studies every year to learn about the island’s biodiversity. One of the most important biological components is phytoplankton, since although it sustains marine pelagic trophic networks and is an essential part of the nutrient cycles; it has not been studied in this area, so an inventory of marine phytoplankton was accomplished. Here, we carried out several trawls with a conical phytoplankton net in July 2011 and July 2012. In the laboratory, abundance was estimated by the Utermolh method, with an inverted microscope and specialized bibliography. The community was represented by 191 species distributed in 121 diatoms, 58 dinoflagellates, 6 cyanobacteria, 3 eugleophytes and 3 silicoflagellates. The coastal marine zone of the island is characterized by a diverse phytoplankton community, with characteristic abundances of oligotrophic waters of coral ecosystems and processes of mixing the water column.
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Science, Environment and Climate; Vol. 1 No. 1 (2018): Science, Environment and Climate; 45-59
Ciencia, Ambiente y Clima; Vol. 1 Núm. 1 (2018): Ciencia, Ambiente y Clima; 45-59
2636-2333
2636-2317
10.22206/cac.2018.v1i1
Ciencia, Ambiente y Clima; Vol. 1 Núm. 1 (2018): Ciencia, Ambiente y Clima; 45-59
2636-2333
2636-2317
10.22206/cac.2018.v1i1